Signalling Security Specialist

About the Role

As a Telecom Signalling Security Analyst , you will combine customer-facing delivery with hands-on technical execution in sensitive telecom environments.

You will:

• Support and operate P1 Security solutions in production contexts (notably PTM and VKB ).

• Conduct signalling security audits using proprietary tooling (notably PTA ) and deliver rigorous, professional reports and presentations to customers.

This is a profile-focused role: we are looking for someone who can cover both audit delivery and operational support.

Our teams are remote-first, with a preference for candidates who can overlap working hours with Central European Time.

Tasks

Key Responsibilities

• Customer delivery & communication

• Act as a technical point of contact for customers: scoping, updates, and delivery.

• Deliver presentations, training, and debrief sessions.

• Signalling Security Audits (PTA)

• Contribute to audit scoping (objectives, perimeter, constraints, timelines, deliverables).

• Prepare safe execution plans and operational safeguards.

• Execute signalling security audits using PTA and associated tooling in a controlled manner.

• Analyze results, validate findings, and assess exploitability/root cause.

• Draft professional technical reports in English and present findings to customers.

• PTM operations & IT support (ticket management)

• Provide IT support for the PTM IDS in the context of customer ticket workflows.

• Troubleshoot and maintain PTM deployments, including Linux and virtualization layers.

• Operate and improve day-to-day tooling/scripts used for investigations, maintenance, and deployments.

• Collaboration & continuous improvement

• Work closely with Engineering and R&D to improve tooling, detection quality, and operational processes.

• Maintain clear internal documentation and handover notes.

Requirements

Required Skills & Qualifications

• Technical writing (English) : ability to draft professional, structured technical reports and slide decks

• Client communication : strong verbal communication skills for presenting and interacting directly with customers.

• Telecom core & roaming security : solid understanding of telecom core architecture, roaming concepts, and where signalling security fits in real operator environments.

• Signalling protocols & call flows (hands-on) : ability to read and reason about SS7/SIGTRAN, Diameter, LTE/IMS and GTP-C call flows, and connect traces/observations to concrete security findings.

• Standards-driven audit mindset : familiarity with GSMA Fraud & Security standards (notably FS.11, FS.19, FS.20 ) and ability to translate requirements into test cases, evidence collection, and actionable remediation.

• Roaming signalling security : mastery of roaming signalling attacks and call flows.

• Linux / terminal : comfortable using a terminal and basic Linux commands.

• Scripting

• Python : Proficiency in "quick scripting" mode : Ability to develop one-off analysis or testing scripts. No expectations regarding software architecture or code maintainability

• Bash / shell scripting : ability to write and maintain scripts for operational needs.

• Virtualization / operations : experience with Linux + ESXi / VM operations (deployment, troubleshooting, maintenance) is a plus

• Soft skills : customer centered, autonomy, high level of rigor, proactive mindset (ability to propose solutions).

Hiring Process

• Initial contact call (10–20 minutes)

• Call with the hiring manager (30 minutes)

• Capability assessment (role-specific exercise)

• Final interview with C-Level and directors (30 minutes)

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